Atomic structure
There is only one chemically distinct structure:
[*]O[C@@H]1[C@@H](O)[C@@H](O[C@H]2[C@H](O)[C@@H](CO)O[C@@H](O[C@H]3[C@@H](O[C@H]4O[C@H](C)[C@H](NC(=O)C[C@@H](C)O)[C@H](O)[C@H]4O)[C@@H](CO)O[C@H](O[C@H]4[C@@H](CO)O[C@@H]([*])[C@H](NC(C)=O)[C@H]4O)[C@@H]3O)[C@@H]2NC(C)=O)O[C@H](CO)[C@@H]1O